<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>组件名称</title>

    <!-- 组件样式（全部的） -->
    <link rel="stylesheet" href="../../dist/tdesign.css" />
    <!--
      TDesign 图标库，桌面端与移动端用同样的资源
      使用方式：<i class="t-icon t-icon-delete"></i>
    -->
    <link
      rel="stylesheet"
      href="https://tdesign.gtimg.com/icon/0.0.3/fonts/index.css"
    />
  </head>
  <body>
    <div class="tdesign-demo-wrap">
      <!-- 开发者信息 -->
      <div class="tdesign-demo-wrap__name">
        <h1 class="">Tree</h1>
        <p class="tdesign-demo-wrap__info">开发者：shryzhang, tabliang</p>
        <p class="tdesign-demo-wrap__info">创建日期：2020.10.12</p>
        <p class="tdesign-demo-wrap__info">说明：tdesign tree 组件的基本样式</p>
      </div>

      <!-- 组件开始区 -->

      <!-- 默认样式 -->
      <div class="tdesign-demo-item">
        <h2 class="tdesign-demo-item__title">默认</h2>

        <!-- 灰底区域 可多个 -->
        <div class="tdesign-demo-item__body">
          <!-- 内容区 Start-->
          <div class="t-tree">
            <!-- 第0层 -->
            <div class="t-tree__item" style="--level: 0;">
              <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
              <span class="t-tree__label">1 第一段信息</span>
            </div>
            <!-- 第0层 -->
            <div class="t-tree__item" style="--level: 0;">
              <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
              <span class="t-tree__label">2 第二段信息</span>
            </div>
            <!-- 第0层 -->
            <div class="t-tree__item t-tree__item--open" style="--level: 0;">
              <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
              <span class="t-tree__label">3 第三段信息</span>
            </div>
            <!-- 第1层 -->
            <div class="t-tree__item t-tree__item--open" style="--level: 1;">
              <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
              <span class="t-tree__label">3.1 第三段信息的子信息3.1</span>
            </div>
            <!-- 第2层 -->
            <div class="t-tree__item t-tree__item--open" style="--level: 2;">
              <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
              <span class="t-tree__label">3.1.1 第三段信息的子信息3.1.1</span>
            </div>
            <!-- 第3层 -->
            <div class="t-tree__item" style="--level: 3;">
              <i class="t-tree__icon t-icon"></i>
              <span class="t-tree__label">
                3.1.1.3 第三段信息的子信息3.1.1.2
              </span>
            </div>
            <!-- 第3层 -->
            <div class="t-tree__item" style="--level: 3;">
              <i class="t-tree__icon t-icon"></i>
              <span class="t-tree__label">3.1.1.3 第三段信息的子信息3.1.1.3</span>
            </div>
            <!-- 第3层 -->
            <div class="t-tree__item" style="--level: 3;">
              <i class="t-tree__icon t-icon"></i>
              <span class="t-tree__label">
                3.1.1.3
                这是多多多多多多多多多多多多多多多多多多多多多多多多文字的展示
              </span>
            </div>
            <!-- 第2层 -->
            <div class="t-tree__item" style="--level: 2;">
              <span class="t-tree__icon">
                <svg class="t-icon t-icon-loading-blue t-icon-loading" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" d="M1.5,8 C1.5,4.410375 4.410375,1.5 8,1.5 C11.589625,1.5 14.5,4.410375 14.5,8 L12.875,8 L12.875,8 C12.875,5.30761184 10.6923882,3.125 8,3.125 C5.30761184,3.125 3.125,5.30761184 3.125,8 C3.125,10.6923882 5.30761184,12.875 8,12.875 L8,14.5 C4.410375,14.5 1.5,11.589625 1.5,8 Z"/></svg>
              </span>
              <span class="t-tree__label">3.1.2 第三段信息的子信息3.1.2</span>
            </div>
            <!-- 第1层 -->
            <div class="t-tree__item" style="--level: 1;">
              <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
              <span class="t-tree__label">3.2 第三段信息的子信息3.2</span>
            </div>
            <!-- 第0层 -->
            <div class="t-tree__item" style="--level: 0;">
              <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
              <span class="t-tree__label">4 第四段信息</span>
            </div>
          </div>
          <!-- 内容区 End-->
        </div>
      </div>

      <!-- 空数据 -->
      <div class="tdesign-demo-item">
        <h2 class="tdesign-demo-item__title">默认</h2>

        <!-- 灰底区域 可多个 -->
        <div class="tdesign-demo-item__body">
          <!-- 内容区 Start-->
          <div class="t-tree">
            <!-- 第0层 -->
            <div class="t-tree__empty">暂无数据</div>
          </div>
          <!-- 内容区 End-->
        </div>
      </div>

      <!-- 组件类型 -->
      <div class="tdesign-demo-item">
        <h2 class="tdesign-demo-item__title">类型</h2>
        <h2 class="tdesign-demo-item__title">选择框</h2>
        <div class="tdesign-demo-item__body">
          <!-- 内容区 Start-->
          <div class="t-tree">
            <!-- 第0层 -->
            <div class="t-tree__item">
              <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
              <label class="t-checkbox t-tree__label">
                <input type="checkbox" class="t-checkbox__former" value="" />
                <span class="t-checkbox__input"></span>
                <span class="t-checkbox__label">1 第一段信息</span>
              </label>
            </div>
            <!-- 第0层 -->
            <div class="t-tree__item">
              <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
              <label class="t-checkbox t-tree__label">
                <input type="checkbox" class="t-checkbox__former" value="" />
                <span class="t-checkbox__input"></span>
                <span class="t-checkbox__label">2 第二段信息</span>
              </label>
            </div>
            <!-- 第0层 -->
            <div class="t-tree__item t-tree__item--open">
              <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
              <label class="t-checkbox t-tree__label">
                <input type="checkbox" class="t-checkbox__former" value="" />
                <span class="t-checkbox__input"></span>
                <span class="t-checkbox__label">3 第三段信息</span>
              </label>
            </div>
            <!-- 第1层 -->
            <div class="t-tree__item t-tree__item--open" style="--level: 1;">
              <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
              <label class="t-checkbox t-tree__label">
                <input type="checkbox" class="t-checkbox__former" value="" />
                <span class="t-checkbox__input"></span>
                <span class="t-checkbox__label">3.1 第三段信息的子信息</span>
              </label>
            </div>
            <!-- 第2层 -->
            <div class="t-tree__item" style="--level: 2;">
              <i class="t-tree__icon t-icon"></i>
              <label class="t-checkbox t-tree__label">
                <input type="checkbox" class="t-checkbox__former" value="" />
                <span class="t-checkbox__input"></span>
                <span class="t-checkbox__label">3.1.1 第三段信息的子信息</span>
              </label>
            </div>
            <!-- 第2层 -->
            <div class="t-tree__item" style="--level: 2;">
              <span class="t-tree__icon">
                <svg class="t-icon t-icon-loading-blue t-icon-loading" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" d="M1.5,8 C1.5,4.410375 4.410375,1.5 8,1.5 C11.589625,1.5 14.5,4.410375 14.5,8 L12.875,8 L12.875,8 C12.875,5.30761184 10.6923882,3.125 8,3.125 C5.30761184,3.125 3.125,5.30761184 3.125,8 C3.125,10.6923882 5.30761184,12.875 8,12.875 L8,14.5 C4.410375,14.5 1.5,11.589625 1.5,8 Z"/></svg>
              </span>
              <label class="t-checkbox t-tree__label">
                <input type="checkbox" class="t-checkbox__former" value="" />
                <span class="t-checkbox__input"></span>
                <span class="t-checkbox__label">3.1.2 第三段信息的子信息</span>
              </label>
            </div>
            <!-- 第1层 -->
            <div class="t-tree__item" style="--level: 1;">
              <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
              <label class="t-checkbox t-tree__label">
                <input type="checkbox" class="t-checkbox__former" value="" />
                <span class="t-checkbox__input"></span>
                <span class="t-checkbox__label">3.2 第三段信息的子信息</span>
              </label>
            </div>
            <!-- 第0层 -->
            <div class="t-tree__item">
              <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
              <label class="t-checkbox t-tree__label">
                <input type="checkbox" class="t-checkbox__former" value="" />
                <span class="t-checkbox__input"></span>
                <span class="t-checkbox__label">4 第四段信息</span>
              </label>
            </div>
          </div>
          <!-- 内容区 End-->
        </div>

        <h2 class="tdesign-demo-item__title">
          文件夹图标（自定义图标）
        </h2>
        <div class="tdesign-demo-item__body">
          <!-- 内容区 Start-->
          <div class="t-tree">
            <!-- 第0层 -->
            <div class="t-tree__item">
              <span class="t-tree__icon"><i class="t-icon t-icon-folder"></i></span>
              <label class="t-checkbox t-tree__label">
                <input type="checkbox" class="t-checkbox__former" value="" />
                <span class="t-checkbox__input"></span>
                <span class="t-checkbox__label">1 第一段信息</span>
              </label>
            </div>
            <!-- 第0层 -->
            <div class="t-tree__item">
              <span class="t-tree__icon"><i class="t-icon t-icon-folder"></i></span>
              <label class="t-checkbox t-tree__label">
                <input type="checkbox" class="t-checkbox__former" value="" />
                <span class="t-checkbox__input"></span>
                <span class="t-checkbox__label">2 第二段信息</span>
              </label>
            </div>
            <!-- 第0层 -->
            <div class="t-tree__item">
              <i class="t-tree__icon t-icon t-icon-folder-open"></i>
              <label class="t-checkbox t-tree__label">
                <input type="checkbox" class="t-checkbox__former" value="" />
                <span class="t-checkbox__input"></span>
                <span class="t-checkbox__label">3 第三段信息</span>
              </label>
            </div>
            <!-- 第1层 -->
            <div class="t-tree__item" style="--level: 1;">
              <i class="t-tree__icon t-icon t-icon-folder-open"></i>
              <label class="t-checkbox t-tree__label">
                <input type="checkbox" class="t-checkbox__former" value="" />
                <span class="t-checkbox__input"></span>
                <span class="t-checkbox__label">3.1 第三段信息的子信息</span>
              </label>
            </div>
            <!-- 第2层 -->
            <div class="t-tree__item" style="--level: 2;">
              <i class="t-tree__icon t-icon t-icon-file-paste"></i>
              <label class="t-checkbox t-tree__label">
                <input type="checkbox" class="t-checkbox__former" value="" />
                <span class="t-checkbox__input"></span>
                <span class="t-checkbox__label">3.1.1 第三段信息的子信息</span>
              </label>
            </div>
            <!-- 第2层 -->
            <div class="t-tree__item" style="--level: 2;">
              <i class="t-tree__icon t-icon t-icon-file-paste"></i>
              <label class="t-checkbox t-tree__label">
                <input type="checkbox" class="t-checkbox__former" value="" />
                <span class="t-checkbox__input"></span>
                <span class="t-checkbox__label">3.1.2 第三段信息的子信息</span>
              </label>
            </div>
            <!-- 第1层 -->
            <div class="t-tree__item" style="--level: 1;">
              <span class="t-tree__icon"><i class="t-icon t-icon-folder"></i></span>
              <label class="t-checkbox t-tree__label">
                <input type="checkbox" class="t-checkbox__former" value="" />
                <span class="t-checkbox__input"></span>
                <span class="t-checkbox__label">3.2 第三段信息的子信息</span>
              </label>
            </div>
            <!-- 第0层 -->
            <div class="t-tree__item">
              <span class="t-tree__icon"><i class="t-icon t-icon-folder"></i></span>
              <label class="t-checkbox t-tree__label">
                <input type="checkbox" class="t-checkbox__former" value="" />
                <span class="t-checkbox__input"></span>
                <span class="t-checkbox__label">4 第四段信息</span>
              </label>
            </div>
          </div>
          <!-- 内容区 End-->
        </div>

        <h2 class="tdesign-demo-item__title">可操作</h2>

        <!-- 灰底区域 可多个 -->
        <div class="tdesign-demo-item__body">
          <!-- 内容区 Start-->
          <div class="t-tree">
            <div class="t-tree__item">
              <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
              <span class="t-tree__label">1 第一段信息</span>
              <!-- <span class="t-tree__space"></span> -->
              <span class="t-tree__operations">
                <i class="t-tree__icon t-icon t-icon-bulletpoint"></i>
                <i class="t-tree__icon t-icon t-icon-bulletpoint"></i>
                <i class="t-tree__icon t-icon t-icon-bulletpoint"></i>
              </span>
            </div>
            <div class="t-tree__item">
              <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
              <span class="t-tree__label t-tree__label--strictly">2 第二段信息</span>
              <span class="t-tree__space"></span>
              <span class="t-tree__operations">
                <i class="t-icon t-icon-bulletpoint t-tree__icon"></i>
                <i class="t-icon t-icon-bulletpoint t-tree__icon"></i>
                <i class="t-icon t-icon-bulletpoint t-tree__icon"></i>
              </span>
            </div>
            <div class="t-tree__item t-tree__item--open">
              <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
              <span class="t-tree__label">3 第三段信息</span>
              <span class="t-tree__space"></span>
              <span class="t-tree__operations">
                <i class="t-icon t-icon-bulletpoint t-tree__icon"></i>
              </span>
            </div>
            <div class="t-tree__item t-tree__item--open" style="--level: 1;">
              <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
              <span class="t-tree__label">3.1 第三段信息的子信息3.1</span>
              <span class="t-tree__space"></span>
              <span class="t-tree__operations">
                <i class="t-icon t-icon-bulletpoint t-tree__icon"></i>
              </span>
            </div>
            <div class="t-tree__item" style="--level: 2;">
              <i class="t-tree__icon t-icon"></i>
              <span class="t-tree__label">3.1.1 第三段信息的子信息3.1.1</span>
              <span class="t-tree__space"></span>
              <span class="t-tree__operations">
                <i class="t-icon t-icon-edit t-tree__icon"></i>
                <i class="t-icon t-icon-bulletpoint t-tree__icon"></i>
              </span>
            </div>
            <div class="t-tree__item" style="--level: 2;">
              <span class="t-tree__icon">
                <svg class="t-icon t-icon-loading-blue t-icon-loading" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" d="M1.5,8 C1.5,4.410375 4.410375,1.5 8,1.5 C11.589625,1.5 14.5,4.410375 14.5,8 L12.875,8 L12.875,8 C12.875,5.30761184 10.6923882,3.125 8,3.125 C5.30761184,3.125 3.125,5.30761184 3.125,8 C3.125,10.6923882 5.30761184,12.875 8,12.875 L8,14.5 C4.410375,14.5 1.5,11.589625 1.5,8 Z"/></svg>
              </span>
              <span class="t-tree__label">3.1.2 第三段信息的子信息3.1.2</span>
              <span class="t-tree__space"></span>
              <span class="t-tree__operations">
                <i class="t-icon t-icon-edit t-tree__icon"></i>
                <i class="t-icon t-icon-bulletpoint t-tree__icon"></i>
              </span>
            </div>
            <div class="t-tree__item" style="--level: 1;">
              <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
              <span class="t-tree__label">3.2 第三段信息的子信息3.2</span>
              <span class="t-tree__space"></span>
              <span class="t-tree__operations">
                <i class="t-icon t-icon-bulletpoint t-tree__icon"></i>
              </span>
            </div>
            <div class="t-tree__item">
              <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
              <span class="t-tree__label">4 第四段信息</span>
              <span class="t-tree__space"></span>
              <span class="t-tree__operations">
                <i class="t-icon t-icon-bulletpoint t-tree__icon"></i>
              </span>
            </div>
          </div>
          <!-- 内容区 End-->
        </div>
      </div>

      <!-- 连线 -->
      <div class="tdesign-demo-item">
        <h2 class="tdesign-demo-item__title">显示连线</h2>

        <!-- 灰底区域 可多个 -->
        <div class="tdesign-demo-item__body">
          <!-- 内容区 Start-->
          <div class="t-tree">
            <div class="t-tree__item" style="--level: 0;">
              <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
              <span class="t-tree__label">1</span>
            </div>
            <div class="t-tree__item t-tree__item--open" style="--level: 0;">
              <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
              <span class="t-tree__label">2</span>
            </div>
            <div class="t-tree__item t-tree__item--open" style="--level: 1;">
              <span class="t-tree__line t-tree__line--first" style="--level: 1;"></span>
              <span class="t-tree__icon">
                <svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg>
              </span>
              <span class="t-tree__label">2.1</span>
            </div>
            <div class="t-tree__item t-tree__item--open" style="--level: 2;">
              <span class="t-tree__line t-tree__line--first" style="--level: 2; box-shadow: calc(-1 * var(--space)) 0 var(--color);"></span>
              <span class="t-tree__icon">
                <svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg>
              </span>
              <span class="t-tree__label">2.1.1</span>
            </div>
            <div class="t-tree__item t-tree__item--open" style="--level: 3;">
              <span class="t-tree__line t-tree__line--first" style="--level: 3; box-shadow: calc(-1 * var(--space)) 0 var(--color),calc(-2 * var(--space)) 0 var(--color);"></span>
              <span class="t-tree__icon">
                <svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg>
              </span>
              <span class="t-tree__label">2.1.1.1</span>
            </div>
            <div class="t-tree__item" style="--level: 4;">
              <span class="t-tree__line t-tree__line--leaf t-tree__line--first" style="--level: 4; box-shadow: calc(-2 * var(--space)) 0 var(--color),calc(-3 * var(--space)) 0 var(--color);"></span>
              <span class="t-tree__icon"></span>
              <span class="t-tree__label">2.1.1.1.1</span>
            </div>
            <div class="t-tree__item" style="--level: 4;">
              <span class="t-tree__line t-tree__line--leaf" style="--level: 4; box-shadow: calc(-2 * var(--space)) 0 var(--color),calc(-3 * var(--space)) 0 var(--color);"></span>
              <span class="t-tree__icon"></span>
              <span class="t-tree__label">2.1.1.1.2</span>
            </div>
            <div class="t-tree__item t-tree__item--open" style="--level: 2;">
              <span class="t-tree__line t-tree__line--leaf" style="--level: 2; box-shadow: calc(-1 * var(--space)) 0 var(--color);"></span>
              <span class="t-tree__icon"></span>
              <span class="t-tree__label">2.1.2</span>
            </div>
            <div class="t-tree__item" style="--level: 1;">
              <span class="t-tree__line t-tree__line--leaf" style="--level: 1;"></span>
              <span class="t-tree__icon"></span>
              <span class="t-tree__label">2.2</span>
            </div>
            <div class="t-tree__item" style="--level: 0;">
              <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
              <span class="t-tree__label">4</span>
            </div>
          </div>
          <!-- 内容区 End-->
        </div>
      </div>

      <!-- 组件状态 -->
      <div class="tdesign-demo-item">
        <h2 class="tdesign-demo-item__title">状态</h2>
        <h2 class="tdesign-demo-item__title">选择框状态</h2>
        <!-- 灰底区域 可多个 -->
        <div class="tdesign-demo-item__body">
          <!-- 内容区 Start-->

          <!-- tdesign-demo-block block内容容器，加了上间距 -->
          <div class="tdesign-demo-block">
            <div class="t-tree">
              <!-- 第0层 -->
              <div class="t-tree__item">
                <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
                <label class="t-checkbox">
                  <input type="checkbox" class="t-checkbox__former" value="" />
                  <span class="t-checkbox__input"></span>
                  <span class="t-checkbox__label"></span>
                </label>
                <span class="t-tree__label">1 未选中项</span>
              </div>
              <!-- 第0层 -->
              <div class="t-tree__item">
                <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
                <label class="t-checkbox t-is-disabled">
                  <input type="checkbox" class="t-checkbox__former" value="" />
                  <span class="t-checkbox__input"></span>
                  <span class="t-checkbox__label"></span>
                </label>
                <span class="t-tree__label">2 未选禁用项</span>
              </div>
              <!-- 第0层 -->
              <div class="t-tree__item t-tree__item--open">
                <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
                <!-- 半选中 -->
                <label class="t-checkbox t-is-indeterminate">
                  <input type="checkbox" class="t-checkbox__former" value="" />
                  <span class="t-checkbox__input"></span>
                  <span class="t-checkbox__label"></span>
                </label>
                <span class="t-tree__label">3 半选中项</span>
              </div>
              <!-- 第1层 -->
              <div class="t-tree__item t-tree__item--open" style="--level: 1;">
                <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
                <!-- 半选中 -->
                <label class="t-checkbox t-is-indeterminate">
                  <input type="checkbox" class="t-checkbox__former" value="" />
                  <span class="t-checkbox__input"></span>
                  <span class="t-checkbox__label"></span>
                </label>
                <span class="t-tree__label">3.1 半选中项</span>
              </div>
              <!-- 第2层 -->
              <div class="t-tree__item" style="--level: 2;">
                <i class="t-tree__icon t-icon"></i>
                <label class="t-checkbox t-is-checked">
                  <input type="checkbox" class="t-checkbox__former" value="" />
                  <span class="t-checkbox__input"></span>
                  <span class="t-checkbox__label"></span>
                </label>
                <span class="t-tree__label">3.1.1 选中项</span>
              </div>
              <!-- 第2层 -->
              <div class="t-tree__item" style="--level: 2;">
                <span class="t-tree__icon">
                  <svg class="t-icon t-icon-loading-blue t-icon-loading" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" d="M1.5,8 C1.5,4.410375 4.410375,1.5 8,1.5 C11.589625,1.5 14.5,4.410375 14.5,8 L12.875,8 L12.875,8 C12.875,5.30761184 10.6923882,3.125 8,3.125 C5.30761184,3.125 3.125,5.30761184 3.125,8 C3.125,10.6923882 5.30761184,12.875 8,12.875 L8,14.5 C4.410375,14.5 1.5,11.589625 1.5,8 Z"/></svg>
                </span>
                <label class="t-checkbox t-is-checked t-is-disabled">
                  <input type="checkbox" class="t-checkbox__former" value="" />
                  <span class="t-checkbox__input"></span>
                  <span class="t-checkbox__label"></span>
                </label>
                <span class="t-tree__label">3.1.2 选中禁用项</span>
              </div>
              <!-- 第1层 -->
              <div class="t-tree__item t-tree__item--open" style="--level: 1;">
                <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
                <label class="t-checkbox t-is-indeterminate t-is-disabled">
                  <input type="checkbox" class="t-checkbox__former" value="" />
                  <span class="t-checkbox__input"></span>
                  <span class="t-checkbox__label"></span>
                </label>
                <span class="t-tree__label">3.2 半选禁用项</span>
              </div>
              <!-- 第2层 -->
              <div class="t-tree__item" style="--level: 2;">
                <i class="t-tree__icon t-icon"></i>
                <label class="t-checkbox t-is-disabled">
                  <input type="checkbox" class="t-checkbox__former" value="" />
                  <span class="t-checkbox__input"></span>
                  <span class="t-checkbox__label"></span>
                </label>
                <span class="t-tree__label">3.2.1 未选禁用项</span>
              </div>
              <!-- 第2层 -->
              <div class="t-tree__item" style="--level: 2;">
                <span class="t-tree__icon">
                  <svg class="t-icon t-icon-loading-blue t-icon-loading" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" d="M1.5,8 C1.5,4.410375 4.410375,1.5 8,1.5 C11.589625,1.5 14.5,4.410375 14.5,8 L12.875,8 L12.875,8 C12.875,5.30761184 10.6923882,3.125 8,3.125 C5.30761184,3.125 3.125,5.30761184 3.125,8 C3.125,10.6923882 5.30761184,12.875 8,12.875 L8,14.5 C4.410375,14.5 1.5,11.589625 1.5,8 Z"/></svg>
                </span>
                <label class="t-checkbox t-is-checked t-is-disabled">
                  <input type="checkbox" class="t-checkbox__former" value="" />
                  <span class="t-checkbox__input"></span>
                  <span class="t-checkbox__label"></span>
                </label>
                <span class="t-tree__label">3.2.2 选中禁用项</span>
              </div>
              <!-- 第0层 -->
              <div class="t-tree__item">
                <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
                <label class="t-checkbox">
                  <input type="checkbox" class="t-checkbox__former" value="" />
                  <span class="t-checkbox__input"></span>
                  <span class="t-checkbox__label"></span>
                </label>
                <span class="t-tree__label">4 第四段信息</span>
              </div>
            </div>
          </div>

          <!-- 内容区 End-->
        </div>

        <h2 class="tdesign-demo-item__title">图标选择框状态</h2>
        <!-- 灰底区域 可多个 -->
        <div class="tdesign-demo-item__body">
          <!-- 内容区 Start-->

          <!-- tdesign-demo-block block内容容器，加了上间距 -->
          <div class="tdesign-demo-block">
            <div class="t-tree">
              <!-- 第0层 -->
              <div class="t-tree__item">
                <span class="t-tree__icon"><i class="t-icon t-icon-folder"></i></span>
                <label class="t-checkbox">
                  <input type="checkbox" class="t-checkbox__former" value="" />
                  <span class="t-checkbox__input"></span>
                  <span class="t-checkbox__label"></span>
                </label>
                <span class="t-tree__label">1 未选中项</span>
              </div>
              <!-- 第0层 -->
              <div class="t-tree__item">
                <span class="t-tree__icon"><i class="t-icon t-icon-folder"></i></span>
                <label class="t-checkbox t-is-disabled">
                  <input type="checkbox" class="t-checkbox__former" value="" />
                  <span class="t-checkbox__input"></span>
                  <span class="t-checkbox__label"></span>
                </label>
                <span class="t-tree__label">2 未选禁用项</span>
              </div>
              <!-- 第0层 -->
              <div class="t-tree__item">
                <i class="t-tree__icon t-icon t-icon-folder-open"></i>
                <!-- 半选中 -->
                <label class="t-checkbox t-is-indeterminate">
                  <input type="checkbox" class="t-checkbox__former" value="" />
                  <span class="t-checkbox__input"></span>
                  <span class="t-checkbox__label"></span>
                </label>
                <span class="t-tree__label">3 半选中项</span>
              </div>
              <!-- 第1层 -->
              <div class="t-tree__item" style="--level: 1;">
                <i class="t-tree__icon t-icon t-icon-folder-open"></i>
                <!-- 半选中 -->
                <label class="t-checkbox t-is-indeterminate">
                  <input type="checkbox" class="t-checkbox__former" value="" />
                  <span class="t-checkbox__input"></span>
                  <span class="t-checkbox__label"></span>
                </label>
                <span class="t-tree__label">3.1 半选中项</span>
              </div>
              <!-- 第2层 -->
              <div class="t-tree__item" style="--level: 2;">
                <i class="t-tree__icon t-icon t-icon-file-paste"></i>
                <label class="t-checkbox t-is-checked">
                  <input type="checkbox" class="t-checkbox__former" value="" />
                  <span class="t-checkbox__input"></span>
                  <span class="t-checkbox__label"></span>
                </label>
                <span class="t-tree__label">3.1.1 选中项</span>
              </div>
              <!-- 第2层 -->
              <div class="t-tree__item" style="--level: 2;">
                <i class="t-tree__icon t-icon t-icon-file-paste"></i>
                <label class="t-checkbox t-is-checked t-is-disabled">
                  <input type="checkbox" class="t-checkbox__former" value="" />
                  <span class="t-checkbox__input"></span>
                  <span class="t-checkbox__label"></span>
                </label>
                <span class="t-tree__label">3.1.2 选中禁用项</span>
              </div>
              <!-- 第1层 -->
              <div class="t-tree__item" style="--level: 1;">
                <i class="t-tree__icon t-icon t-icon-folder-open"></i>
                <label class="t-checkbox t-is-indeterminate t-is-disabled">
                  <input type="checkbox" class="t-checkbox__former" value="" />
                  <span class="t-checkbox__input"></span>
                  <span class="t-checkbox__label"></span>
                </label>
                <span class="t-tree__label">3.2 半选禁用项</span>
              </div>
              <!-- 第2层 -->
              <div class="t-tree__item" style="--level: 2;">
                <i class="t-tree__icon t-icon t-icon-file-paste"></i>
                <label class="t-checkbox t-is-disabled">
                  <input type="checkbox" class="t-checkbox__former" value="" />
                  <span class="t-checkbox__input"></span>
                  <span class="t-checkbox__label"></span>
                </label>
                <span class="t-tree__label">3.2.1 未选禁用项</span>
              </div>
              <!-- 第2层 -->
              <div class="t-tree__item" style="--level: 2;">
                <i class="t-tree__icon t-icon t-icon-file-paste"></i>
                <label class="t-checkbox t-is-checked t-is-disabled">
                  <input type="checkbox" class="t-checkbox__former" value="" />
                  <span class="t-checkbox__input"></span>
                  <span class="t-checkbox__label"></span>
                </label>
                <span class="t-tree__label">3.2.2 选中禁用项</span>
              </div>
              <!-- 第0层 -->
              <div class="t-tree__item">
                <span class="t-tree__icon"><i class="t-icon t-icon-folder"></i></span>
                <label class="t-checkbox">
                  <input type="checkbox" class="t-checkbox__former" value="" />
                  <span class="t-checkbox__input"></span>
                  <span class="t-checkbox__label">4 第四段信息</span>
                </label>
                <span class="t-tree__label">4 第四段信息</span>
              </div>
            </div>
          </div>

          <!-- 内容区 End-->
        </div>

        <h2 class="tdesign-demo-item__title">选择态</h2>

        <!-- 灰底区域 可多个 -->
        <div class="tdesign-demo-item__body">
          <!-- 内容区 Start-->
          <div class="t-tree">
            <!-- 第0层 -->
            <div class="t-tree__item">
              <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
              <span class="t-tree__label">1 第一段信息</span>
            </div>
            <!-- 第0层 -->
            <div class="t-tree__item">
              <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
              <span class="t-tree__label">2 第二段信息</span>
            </div>
            <!-- 第0层 -->
            <div class="t-tree__item t-tree__item--open">
              <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
              <span class="t-tree__label">3 第三段信息</span>
            </div>
            <!-- 第1层 -->
            <div class="t-tree__item t-tree__item--open" style="--level: 1;">
              <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
              <span class="t-tree__label">3.1 第三段信息的子信息3.1</span>
            </div>
            <!-- 第2层 -->
            <div class="t-tree__item t-is-active" style="--level: 2;">
              <i class="t-tree__icon t-icon"></i>
              <span class="t-tree__label">3.1.1 第三段信息的子信息3.1.1</span>
            </div>
            <!-- 第2层 -->
            <div class="t-tree__item" style="--level: 2;">
              <span class="t-tree__icon">
                <svg class="t-icon t-icon-loading-blue t-icon-loading" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" d="M1.5,8 C1.5,4.410375 4.410375,1.5 8,1.5 C11.589625,1.5 14.5,4.410375 14.5,8 L12.875,8 L12.875,8 C12.875,5.30761184 10.6923882,3.125 8,3.125 C5.30761184,3.125 3.125,5.30761184 3.125,8 C3.125,10.6923882 5.30761184,12.875 8,12.875 L8,14.5 C4.410375,14.5 1.5,11.589625 1.5,8 Z"/></svg>
              </span>
              <span class="t-tree__label">3.1.2 第三段信息的子信息3.1.2</span>
            </div>
            <!-- 第1层 -->
            <div class="t-tree__item" style="--level: 1;">
              <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
              <span class="t-tree__label">3.2 第三段信息的子信息3.2</span>
            </div>
            <!-- 第0层 -->
            <div class="t-tree__item">
              <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
              <span class="t-tree__label">4 第四段信息</span>
            </div>
          </div>
          <!-- 内容区 End-->
        </div>

        <h2 class="tdesign-demo-item__title">hover态</h2>

        <!-- 灰底区域 可多个 -->
        <div class="tdesign-demo-item__body">
          <!-- 内容区 Start-->
          <div class="t-tree">
            <div class="t-tree-list t-tree--hoverable">
              <!-- 第0层 -->
              <div class="t-tree__item">
                <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
                <span class="t-tree__label">1 第一段信息</span>
              </div>
              <!-- 第0层 -->
              <div class="t-tree__item">
                <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
                <span class="t-tree__label">2 第二段信息</span>
              </div>
              <!-- 第0层 -->
              <div class="t-tree__item t-tree__item--open">
                <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
                <span class="t-tree__label">3 第三段信息</span>
              </div>
              <!-- 第1层 -->
              <div class="t-tree__item t-tree__item--open" style="--level: 1;">
                <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
                <span class="t-tree__label">3.1 第三段信息的子信息3.1</span>
              </div>
              <!-- 第2层 -->
              <div class="t-tree__item" style="--level: 2;">
                <i class="t-tree__icon t-icon"></i>
                <span class="t-tree__label">3.1.1 第三段信息的子信息3.1.1</span>
              </div>
              <!-- 第2层 -->
              <div class="t-tree__item" style="--level: 2;">
                <span class="t-tree__icon">
                  <svg class="t-icon t-icon-loading-blue t-icon-loading" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" d="M1.5,8 C1.5,4.410375 4.410375,1.5 8,1.5 C11.589625,1.5 14.5,4.410375 14.5,8 L12.875,8 L12.875,8 C12.875,5.30761184 10.6923882,3.125 8,3.125 C5.30761184,3.125 3.125,5.30761184 3.125,8 C3.125,10.6923882 5.30761184,12.875 8,12.875 L8,14.5 C4.410375,14.5 1.5,11.589625 1.5,8 Z"/></svg>
                </span>
                <span class="t-tree__label">3.1.2 第三段信息的子信息3.1.2</span>
              </div>
              <!-- 第1层 -->
              <div class="t-tree__item" style="--level: 1;">
                <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
                <span class="t-tree__label">3.2 第三段信息的子信息3.2</span>
              </div>
              <!-- 第0层 -->
              <div class="t-tree__item">
                <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
                <span class="t-tree__label">4 第四段信息</span>
              </div>
            </div>
          </div>
          <!-- 内容区 End-->
        </div>

        <h2 class="tdesign-demo-item__title">动画效果</h2>

        <!-- 灰底区域 可多个 -->
        <div class="tdesign-demo-item__body">
          <!-- 内容区 Start-->
          <div class="t-tree t-tree--fx">
            <div class="t-tree-list t-tree--hoverable">
              <!-- 第0层 -->
              <div class="t-tree__item t-tree-toggle-enter-active">
                <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
                <span class="t-tree__label">1 第一段信息</span>
              </div>
              <!-- 第0层 -->
              <div class="t-tree__item t-tree-toggle-enter-active">
                <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
                <span class="t-tree__label">2 第二段信息</span>
              </div>
              <!-- 第0层 -->
              <div class="t-tree__item t-tree__item--open t-tree-toggle-enter-active">
                <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
                <span class="t-tree__label">3 第三段信息</span>
              </div>
              <!-- 第1层 -->
              <div class="t-tree__item t-tree__item--open t-tree-toggle-enter-active" style="--level: 1;">
                <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
                <span class="t-tree__label">3.1 第三段信息的子信息3.1</span>
              </div>
              <!-- 第2层 -->
              <div class="t-tree__item t-tree-toggle-enter-active" style="--level: 2;">
                <i class="t-tree__icon t-icon"></i>
                <span class="t-tree__label">3.1.1 第三段信息的子信息3.1.1</span>
              </div>
              <!-- 第1层 -->
              <div class="t-tree__item t-tree-toggle-enter-active" style="--level: 1;">
                <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
                <span class="t-tree__label">3.2 第三段信息的子信息3.2</span>
              </div>
              <!-- 第0层 -->
              <div class="t-tree__item t-tree-toggle-leave-active">
                <span class="t-tree__icon"><svg class="t-icon t-icon-chevron-right" viewBox="0 0 16 16" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M4.78170052 3.08475456L5.4888073 2.37764778 11.1111595 8 5.4888073 13.6223522 4.78170052 12.9152454 9.697 8z"></path></svg></span>
                <span class="t-tree__label">4 第四段信息</span>
              </div>
            </div>
          </div>
          <!-- 内容区 End-->
        </div>
      </div>
    </div>
  </body>
</html>
